Two-chamber refrigerators of the Belarusian brand Atlant for many years they have remained one of the most popular in the post-Soviet space due to their reliability and maintainability. However, like any complex equipment, they require careful attention to the settings, especially when it comes to the safety of products. Incorrectly set temperature can lead to rapid spoilage of food or, conversely, to excessive consumption of electricity and freezing of the evaporator.
Owners often encounter a situation when food in the refrigerator compartment begins to freeze, and in the freezer, on the contrary, melts, although nothing seems to have changed in the operation of the unit. The key to the solution lies in a correct understanding of the operating principles thermostat and air flows inside the cabinet. In this article, we will look in detail at how to find the optimal balance for your model.
Before turning the knobs or pressing the buttons, it is important to determine the type of control of your device. The algorithm of actions and possible mistakes that can be made during the setup process directly depend on this. Next, we will look at all the nuances specific to the technology Atlant.
The principle of operation of the Atlant cooling system
Most two-chamber models Atlant operate according to a scheme with one compressor and one cooling circuit. This means that the cold is generated in the freezer compartment, and then, with the help of dampers and natural or forced convection, enters the refrigerator compartment. Thermoregulator in such systems it is usually installed in the refrigerator compartment, but physically it controls the temperature of the evaporator, which is located in the freezer.
When you turn the adjustment knob, you change the thermostat response threshold. If the thermostat is mechanical, it opens the electrical circuit when a certain temperature is reached on the capillary tube. In models with electronic control No Frost or Frost Free the signal is sent to the control board, which already commands the compressor and fans.
⚠️ Attention: In single-circuit systems, it is impossible to independently regulate the temperature in the freezer and refrigerator compartment using one knob. By changing the settings, you change the operating mode of the entire unit at once.
It is important to understand that the temperature sensor does not respond to the air in the center of the chamber, but to the temperature at the point of its installation, often near the wall or evaporator. Therefore, sharp jumps in readings can be associated precisely with local hypothermia of the sensor area.
Mechanical control: decoding of the thermostat scale
In classic models Atlantsuch as the MHM-1700, 1800 or 2800 series, adjustment is carried out by a rotary knob located inside the refrigerator compartment or on the front panel. The scale is usually numbered from 1 to 7 (or from Min to Max). Many users mistakenly believe that the number indicates degrees Celsius, but this is not so.
The numbers on the regulator indicate cooling intensity. One corresponds to the minimum cold production (the temperature inside will be higher), and seven corresponds to the maximum (the temperature will drop to minimum values). If the knob is set to "0" or "Off", the compressor is completely turned off and the refrigerator does not work.
- ❄️ Positions 1-2: Low cooling mode, suitable for the winter period or when there is little food in the chamber.
- ❄️ Positions 3-4: Optimal mode for standard load and room temperature in the room.
- ❄️ Positions 5-7: Maximum freezing mode, used for quick cooling of large quantities of food or in summer heat.
Not worth immediately turn the knob to maximum in the hope of cooling the food faster. This will lead to the compressor working without interruption, trying to reach a value that is unattainable in this mode, which can cause it to overheat and fail.
Electronic control and display
More modern models Atlant, especially series with the system No Frost, are equipped with an electronic control unit and a digital display. Here the adjustment is much more precise, since you set a specific target temperature in degrees. Typically, control is carried out using arrow buttons or touch panels.
Such refrigerators often have a “Super Freeze” or “Super Freeze” function, which forcibly turns on the compressor for a long time. After activating this mode (the corresponding indicator usually lights up), the temperature in the freezer can drop to -24°C or lower. It is important to remember to turn off this feature manually if it does not turn off automatically after a certain time, so as not to freeze food into stone.
The electronics also allow you to see the current temperature inside the chambers, although there may be a slight delay in these readings. If the numbers are flashing on the display, this often indicates that the actual temperature in the chamber differs from the set one, for example, after defrosting or loading warm products.
⚠️ Attention: During power surges, the electronic control unit Atlant may go wrong or show an error. If the display behaves strangely, try turning off the power to the refrigerator for 10-15 minutes to reboot the system.
Optimal temperature conditions for storage
To ensure the safety of products and their long-term storage, it is necessary to adhere to certain temperature ranges. In the refrigerator compartment, the optimal temperature is considered to be from +2°C to +4°C. Under such conditions, most bacteria slow down their vital activity, but the food does not freeze.
In the freezer, the standard temperature is -18°C or lower. It is at this temperature that products can be stored for up to a year without loss of taste. If the temperature rises above -12°C, shelf life is sharply reduced, and at -6°C many products begin to deteriorate within a few weeks.
| Storage area | Optimal t° | Acceptable range | What to store |
|---|---|---|---|
| Freezer | -18°C | from -15°C to -24°C | Meat, fish, semi-finished products, berries |
| Bottom shelf of the refrigerator | +2°C | from +1°C to +3°C | Raw meat, fish, open packages |
| Middle shelves | +4°C | from +3°C to +5°C | Dairy products, ready meals, sausages |
| Door shelves | +6°C...+8°C | from +5°C to +10°C | Drinks, sauces, medicines, eggs |
It is worth considering that the distribution of cold in the chamber is uneven. It is always colder at the back wall, where evaporatoris located, than at the door. Therefore, the placement of products must correspond to the temperature zones.
☑️ Checking storage conditions
Factors influencing the temperature inside the chambers
Even a correctly set thermostat knob does not guarantee a stable temperature if external factors are not taken into account. One of the main enemies of the refrigerator is high ambient temperature in the room. If the kitchen is +30°C, the refrigerator Atlant will have to work much harder to maintain -18°C in the freezer.
The loading of cameras also plays a role. An empty refrigerator cools down faster, but it also heats up instantly from the warm air when the door is opened. Products, especially those containing water, have a high heat capacity and act as “cold accumulators,” stabilizing the temperature. However, if the chamber is jam-packed, air circulation will be disrupted, and different corners will have different conditions.
The frequency of door opening is another critical parameter. Every time you open the refrigerator, cold air (which is heavier than warm air) flows down and warm room air takes its place. The compressor has to re-cool this volume.
Why does the refrigerator work worse in hot weather?
In a hot room, the condenser (grid at the back or on the sides) transfers heat worse to the environment. The efficiency of heat transfer decreases, the pressure in the system increases, and the compressor cannot achieve the required cooling power. During such periods, it is better not to place the refrigerator close to the wall and ensure air flow to the back wall.
Typical problems and their solutions
Sometimes users are faced with a situation where adjustment does not produce results. If you turn the knob from 1 to 7, and the temperature does not change, there may be a freon leak. In the first case, you will need to replace the sensor, in the second - searching for leaks and refilling with refrigerant. thermostat failure or freon leak. In the first case, you will need to replace the sensor, in the second, you will need to search for leaks and refill with refrigerant.
Another common problem is the freezing of the “coat” on the back wall of the refrigerator compartment (in models with a drip system). If the ice layer becomes too thick, it begins to interfere with sensor operation and heat transfer. In this case, adjusting the temperature will not help - you need to completely defrost the refrigerator within 10-12 hours.
It is also worth checking the rubber seals on the doors. If they do not fit tightly, warm, humid air constantly enters the chamber, which leads to the formation of ice and an increase in the average temperature, causing the compressor to work for wear.
⚠️ Attention: If, after defrosting and correctly setting the thermostat, the temperature does not stabilize during the day, and the compressor runs non-stop or does not turn on at all, do not continue operation. This may damage the compressor. Contact the service center.
FAQ: Frequently asked questions
Why ice freezes in the Atlant refrigerator, even if the thermostat is set to minimum?
This may indicate a loose door fit, damage to the seal or a malfunction of the defrost sensor (in No Frost models). Also check whether the drainage holes for condensate drainage are not clogged.
What number should you set on the thermostat in the summer?
In the summer, when the room is hot, heat inflows are higher. It is recommended to switch the knob to a more intensive mode (closer to 4-5) to compensate for the high external temperature, but make sure that the compressor has time to turn off.
What does the flashing indicator on the display mean?
Flashing usually signals an alarm. This could be an open door, the temperature in the chamber being too high after loading food, or a system malfunction. If the blinking does not stop after the cameras cool down, diagnostics are needed.
Is it possible to use an external thermometer to check?
Yes, this is the most reliable way. Place a glass of water on the middle shelf, lower the thermometer there and leave for several hours. The readings must correspond to the set values with an error of 1-2 degrees.